Centrifugal filter.



PATENTED FEB. 20, 1906.

E. H. BUTCHER.

CENTRIPUGAL FILTER.

APPLICATION FILED OCT. 7,1905.

PATENT UE'FTCE EDWARD H. DUTOHER, OF SIEGFRIED, PENNSYLVANIA, ASSIGNOR, BY DTRECT AND MESNE ASSTGNMENTS, TO LEHIGH OIL AND WASTE SAVING COMPANY, OF CAMDEN, NEWJERSEY.

CEINTRI'YFUGAL FlLTER.

Specification of Letters'Patent.

Patented Feb. 20, 1906.

Original application filed July 3,1905, Serial No. 268,105. Dividedand this application filed October 7,1905. Serial No. 281.742.-

of Pennsylvania, have invented certain new,

and useful Improvements in Separators for Centrifugal Oil Extracting and Filtering Machines, of which the following is a specification. I

My invention has relation to a separator for centrifugal oil extracting and filtering machine, and in such connection it relates more particularly to the construction and arrangement of such a separator, and being a division of an application for a patent filed by me under date of July 3, 1.905, under the Serial No. 268,105.

The principal object of my invention is to provide a centrifugal oil extracting and filtering machine with a separator partially formed by the housing of the machine and with means carried by the same and partially formed by the standard of the machine and with means carried thereby, to permit of the collecting and settling of oil and watercomminglin with the same and extracted from materia confined in a basket and the separation and separate discharge of the oil and water therefrom. g

The nature and scope of my invention will be more fully understood from the following description, taken in connection with the accompanying drawings, forming part hereof, in which Figure 1 is a view, partly in front elevation and partly in vertical central section, illustrating the basket for the oily material, the means for supporting and rotating the same in a stationary housin and a separator for the extracted and puri' ed oil and water commingling? with the same partially formed by the housing and a standard carrying the same, constituting main features of my resent invention; and Fig. 2 is a horizonta sectional view of the upper end of the standard and the lower portion of the-housin of the machine and of pipes carried by the housing and extending into the standard.

Referring to the drawings, a is the standard of the machine, to the upper end of which is suitably secured a housing a, annularin cross-section, having a cover a, provided with an opening a. This opening is normally closed by a lid a", which by means of a leaf-spring (1 secured to the under side of the lid a, is removably connected with the housing a by engaging projections a there of, The housing 0/ is provided with a centrally-arrange'd' projection a7, extending into the standard a, which serves as a sup ort for a shaft i The shaft a within the liousing a serves as a support for a basket 5, adapted to receive material, more or less, saturated with oil, which is to be extracted therefrom. The basket preferably consists of an annular disk or bottom plate I), strengthened by ribs 11 having a central upwardly-projecting portion 12 forming a chamber 1), and a support for a ball-bearing b centrally enga ing the upper surface of the shaft a", and a re ler bearing 1), surrounding the shaft "adjacent to the ball-bearing I). These bearings, in conjunction with a roller-bearing b", arranged in an extensiont" of the projection b serve to supportthe plate I) on the shaft a and to permit of an easy turning thereon. I

The plate b adjacent to its perimeter is provided with a flange b", which holds a per orated cylinder 1), carried by the plate I), in

its proper position. In addition to the perforated cylinder b the plate 5 is provided with a second cylinder b", preferably formed of coarse-meshed wire-netting, which, in conjunction with the cylinder b, forms an annular chamber'for the reception of a suitable filtering material c. in this basket I) is placed the material from which oil is to be extracted, and below the bottom plate 5 and secured to the extension b of the projection b is arranged an annular disk d, which is provided adjacent to its outerperiphery with curved blades d,, radially arranged with respect to the shaft a This diskd, in conjunction with a nozzle c, arranged in the wall of the housing 0/, forms a turbine and the motive power is furnished by steam issuing from the nozzle 6 and impinging against the blades 01, which sets the disks (1 and the hasket h in rapid rotation. In this rotation and by centrifugal force all the oil in the material placed in the basket I), as well as impurities and other extraneous matter in the same, areliberated therefrom andforce'dinto the filtering material 0 by readil passing through the inner wall b. The ii tering material 0, however, arrests all these impurities, not alone of the oil extracted from the waste material, but also those previously held by the oily material and only permits extracted oil to pass therethrough. The oil when finally leaving .the filtering material a and passing through the 0 enings in the outer wall I) is in a thorough y-purified state, ready again for use. Owing to centrifu al force, this oil is forced through the chamber a, formed between the basket I) and the housing a and a ainst the inner wall thereof, and by flowing ownward thereon is finally conducted by the inclined the chamber 1) of the projection b and therefrom by means of openings b into the interior of the basket I). The steam finally leaves the basket I) through the opening a, ar-

ranged in the housing a. Asshown in F-i 1, this opening a is covered by aguard-p ate a which prevents oil from passing throu h the same. A certain ortion of the steam y being brought into irect contact with the oily material is condensed therein, and the water so formed, in conjunction with the oil,

is force (1 through the filtering material intov the housing a, and flows from thence into the settlin chamber a by means of the pipes a The oi being of less specific gravity than the water will readily separate therefrom in the settling-chamber a and by means of ,a pipe 9 will be conducted from the same. A draincock 9, arranged in alinement with the partition-wall a, permits of the draining of the accumulated water from the settling-cham-' ber a. I

Having thus described the nature and ,ob-

' jects of my invention, what I claim as new,

I and desire-t0 secure by Letters Patent, is

1. A se arator for centrifugal oil extracting and filtering machines, consisting of a standard having a settling-chamber, a housing carried by said standard having a bottom downwardly inclined toward its central portion, means arranged in said-bottom for connectin the housin with said settling-chamber, a basket for oiicontainin material having outer and inner perforate walls for per-- mittin of the passageof oil and water therethroug into said housing and of the conducting of the oil and water by its bottom and the connecting means carried bythe same into said settling-chamber, and outlets arranged at different planes in said, standard for permitting the separate removal of oil and water therefrom.

2. A se arator for centrifugal oil extracting and ltering machinesy consisting of a standard having a settlin ehamber, a housing carried by said stan ard having an. inclined bottom, tubes arranged in said bottom extending into said settling-chamber and adapted to connect the housing with said chamber, a basket for oil-containin material I having walls adapted to permit 0 the pas-- sage of oil and water therethrough and rotatably arranged in said housing, said housing adapted to collect oil and water from said basket and by the inclined bottom thereof to conduct the same into said tubes, an outlet for oil and an outlet for water in said standard arranged above and below the free ends of said tubes, to permit of separate removal of the oil and-water from said settling-chamber.

3. Ase arator for centrifugal oil extracting and tering machines, consisting of a standard havinga settlin -chamber, a housing carried by said stan ard having an inclined bottom, tubes arranged in said bottom and extending into said settling-chamber and adapted to connect said housing therewith, a basket for oil-containing material having walls to ermit of the passage of oil and water therethrough and rotatably mounted in said housing, said housing adapted to collect oil and water from said basket and by the inclined bottom thereof to conduct the same into said tubes, a drain-pipe for oil and a drain-cock for water arranged above and below the free ends of said tubes, respectively, and ada ted to permit of the separate removal o the oil and of the water from said settling-chamber and tubes to permit of the discharge of the oil and water at a point normally below the level of the oil, in said chamber.

In testimony whereof I have hereunto set my signature in the presence of two subscribing witnesses.

EDWARD H. DUTOHER.

Witnesses:

JOHN G. Kocn, R. L. COPE. 

